iOS: If you're gearing up to do some holiday travel, then chances are you'll also be doing some eating (or drinking) at the airport. If you want to prep yourself a little ahead of time, Airport Guide is an app that gives you a map of the terminals, as well as all the amenities you'll find there.

The most useful feature of the Airport Guide is the terminal maps, which are especially valuable if you're making a connecting flight and need to get a glance at where your layover is. Also included is a list of restaurants, lounges, amenities, ground transportation, and parking options. Airport Guide doesn't include any info about your flights, but if you simply want to get the lay of the land, and maybe see what dining options other terminals have, it's a good app to keep around.